GL-MiFi 3G connection troubles

jw1 · 2016-01-24T05:18:39.000Z

Upon trying to establish a 3G connection with the GL-MiFi + Quectel UC20 daughter board I am stuck in the final PPP negotiation phase.

I have found I have to use /dev/ttyUSB3 for the data and not /dev/ttyUSB2 as with the ttyUSB2 port the dial script will give an ERROR at the ATDT command where the connect is being initiated. When I change to ttyUSB3 the connect script succeeds.

The CHAP authentication succeeds as well in the subsequent PPP negotiation phase, but after that I run into problems that I haven’t been able to solve with a couple of days of googling.

Here is my log:


Sat Jan 23 22:08:10 2016 daemon.notice netifd: Interface ‘wan’ is setting up now
Sat Jan 23 22:08:11 2016 daemon.notice netifd: Interface ‘wan’ is now down
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.420000] usb 1-1.2: new high-speed USB device number 9 using ehci-platform
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.540000] option 1-1.2:1.0: GSM modem (1-port) converter detected
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.540000] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.550000] option 1-1.2:1.1: GSM modem (1-port) converter detected
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.570000] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.570000] option 1-1.2:1.2: GSM modem (1-port) converter detected
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.590000] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.590000] option 1-1.2:1.3: GSM modem (1-port) converter detected
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.610000] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB3
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.610000] option 1-1.2:1.4: GSM modem (1-port) converter detected
Sat Jan 23 22:08:13 2016 kern.info kernel: [  268.630000] usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB4
Sat Jan 23 22:08:17 2016 daemon.notice netifd: Interface ‘wan’ is setting up now
Sat Jan 23 22:08:19 2016 kern.err kernel: [  273.770000] option1 ttyUSB3: option_instat_callback: error -2
Sat Jan 23 22:08:19 2016 daemon.notice pppd[5358]: pppd 2.4.7 started by root, uid 0
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: abort on (BUSY)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: abort on (NO CARRIER)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: abort on (ERROR)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: report (CONNECT)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: timeout set to 10 seconds
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: send (AT&F^M)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: expect (OK)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: AT&F^M^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: OK
Sat Jan 23 22:08:20 2016 local2.info chat[5360]:  – got it
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: send (ATE1^M)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: expect (OK)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: ^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: ATE1^M^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: OK
Sat Jan 23 22:08:20 2016 local2.info chat[5360]:  – got it
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: send (AT+CGDCONT=1,“IP”,“portalmmm.nl”^M)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: timeout set to 30 seconds
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: expect (OK)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: ^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: AT+CGDCONT=1,“IP”,“portalmmm.nl”^M^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: OK
Sat Jan 23 22:08:20 2016 local2.info chat[5360]:  – got it
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: send (ATD99**1#^M)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: expect (CONNECT)
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: ^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: ATD99**1#^M^M
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: CONNECT
Sat Jan 23 22:08:20 2016 local2.info chat[5360]:  – got it
Sat Jan 23 22:08:20 2016 local2.info chat[5360]: send ()
Sat Jan 23 22:08:20 2016 daemon.debug pppd[5358]: Script USE_APN=portalmmm.nl DIALNUMBER=99**1# /usr/sbin/chat -t5 -v -E -f /etc/chatscripts/3g.chat finished (pid 5359), status = 0x0
Sat Jan 23 22:08:20 2016 daemon.info pppd[5358]: Serial connection established.
Sat Jan 23 22:08:20 2016 daemon.debug pppd[5358]: using channel 3
Sat Jan 23 22:08:20 2016 daemon.info pppd[5358]: Using interface 3g-wan
Sat Jan 23 22:08:20 2016 daemon.notice pppd[5358]: Connect: 3g-wan <–> /dev/ttyUSB3
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x752a4fd9>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0x269f9c4> <pcomp> <accomp>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [LCP ConfRej id=0x0 <pcomp> <accomp>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x752a4fd9>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [LCP ConfReq id=0x1 <asyncmap 0x0> <auth chap MD5> <magic 0x269f9c4>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [LCP ConfAck id=0x1 <asyncmap 0x0> <auth chap MD5> <magic 0x269f9c4>]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x0 magic=0x752a4fd9]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [LCP DiscReq id=0x2 magic=0x269f9c4]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [CHAP Challenge id=0x1 <9aa12133ae9ff8e4f2cdbb7ede0bce5b>, name = “UMTS_CHAP_SRVR”]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [CHAP Response id=0x1 <59eea8ff1e6102dfeb551da56f831abb>, name = “""”]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x0 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: rcvd [CHAP Success id=0x1 “”]
Sat Jan 23 22:08:21 2016 daemon.info pppd[5358]: CHAP authentication succeeded
Sat Jan 23 22:08:21 2016 daemon.notice pppd[5358]: CHAP authentication succeeded
Sat Jan 23 22:08:21 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:22 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x1 magic=0x752a4fd9]
Sat Jan 23 22:08:22 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x1 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:22 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:22 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:22 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x2 00 00 03 01 00 04]
Sat Jan 23 22:08:23 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x2 magic=0x752a4fd9]
Sat Jan 23 22:08:23 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x2 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:24 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x3 magic=0x752a4fd9]
Sat Jan 23 22:08:24 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:24 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x3 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:25 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x4 magic=0x752a4fd9]
Sat Jan 23 22:08:25 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x4 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:25 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:25 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:25 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x3 00 00 03 01 00 04]
Sat Jan 23 22:08:26 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x5 magic=0x752a4fd9]
Sat Jan 23 22:08:26 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x5 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:27 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x6 magic=0x752a4fd9]
Sat Jan 23 22:08:27 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x6 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:27 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:28 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x7 magic=0x752a4fd9]
Sat Jan 23 22:08:28 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:28 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:28 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x4 00 00 03 01 00 04]
Sat Jan 23 22:08:28 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x7 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:29 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x8 magic=0x752a4fd9]
Sat Jan 23 22:08:29 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x8 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:30 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x9 magic=0x752a4fd9]
Sat Jan 23 22:08:30 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:30 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x9 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:31 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xa magic=0x752a4fd9]
Sat Jan 23 22:08:31 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:31 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:31 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x5 00 00 03 01 00 04]
Sat Jan 23 22:08:31 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xa magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:32 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xb magic=0x752a4fd9]
Sat Jan 23 22:08:32 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xb magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:33 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:33 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xc magic=0x752a4fd9]
Sat Jan 23 22:08:33 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xc magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:34 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xd magic=0x752a4fd9]
Sat Jan 23 22:08:34 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:34 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:34 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x6 00 00 03 01 00 04]
Sat Jan 23 22:08:34 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xd magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:35 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xe magic=0x752a4fd9]
Sat Jan 23 22:08:35 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xe magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:36 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:36 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0xf magic=0x752a4fd9]
Sat Jan 23 22:08:36 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0xf magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:37 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x10 magic=0x752a4fd9]
Sat Jan 23 22:08:37 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:37 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:37 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x7 00 00 03 01 00 04]
Sat Jan 23 22:08:37 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x10 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:38 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x11 magic=0x752a4fd9]
Sat Jan 23 22:08:38 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x11 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:39 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:39 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x12 magic=0x752a4fd9]
Sat Jan 23 22:08:39 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x12 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:40 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x13 magic=0x752a4fd9]
Sat Jan 23 22:08:40 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:40 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:40 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x8 00 00 03 01 00 04]
Sat Jan 23 22:08:40 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x13 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:41 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x14 magic=0x752a4fd9]
Sat Jan 23 22:08:41 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x14 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:42 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:42 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x15 magic=0x752a4fd9]
Sat Jan 23 22:08:42 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x15 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:43 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:43 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:43 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0x9 00 00 03 01 00 04]
Sat Jan 23 22:08:43 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x16 magic=0x752a4fd9]
Sat Jan 23 22:08:43 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x16 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:44 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x17 magic=0x752a4fd9]
Sat Jan 23 22:08:44 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x17 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:45 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:45 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x18 magic=0x752a4fd9]
Sat Jan 23 22:08:45 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x18 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:46 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:46 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:46 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0xa 00 00 03 01 00 04]
Sat Jan 23 22:08:46 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x19 magic=0x752a4fd9]
Sat Jan 23 22:08:46 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x19 magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:47 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x1a magic=0x752a4fd9]
Sat Jan 23 22:08:47 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x1a magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:48 2016 daemon.debug pppd[5358]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Sat Jan 23 22:08:48 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x1b magic=0x752a4fd9]
Sat Jan 23 22:08:48 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x1b magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:49 2016 daemon.debug pppd[5358]: rcvd [proto=0x0] 03 01 00 04
Sat Jan 23 22:08:49 2016 daemon.warn pppd[5358]: Unsupported protocol 0x0 received
Sat Jan 23 22:08:49 2016 daemon.debug pppd[5358]: sent [LCP ProtRej id=0xb 00 00 03 01 00 04]
Sat Jan 23 22:08:49 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x1c magic=0x752a4fd9]
Sat Jan 23 22:08:49 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x1c magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:50 2016 daemon.debug pppd[5358]: sent [LCP EchoReq id=0x1d magic=0x752a4fd9]
Sat Jan 23 22:08:50 2016 daemon.debug pppd[5358]: rcvd [LCP EchoRep id=0x1d magic=0x269f9c4 75 2a 4f d9]
Sat Jan 23 22:08:51 2016 daemon.warn pppd[5358]: IPCP: timeout sending Config-Requests
Sat Jan 23 22:08:51 2016 daemon.debug pppd[5358]: sent [LCP TermReq id=0xc “No network protocols running”]
Sat Jan 23 22:08:51 2016 daemon.debug pppd[5358]: rcvd [LCP TermAck id=0xc]
Sat Jan 23 22:08:51 2016 daemon.notice pppd[5358]: Connection terminated.
Sat Jan 23 22:08:52 2016 kern.err kernel: [  306.690000] option1 ttyUSB3: option_instat_callback: error -2
Sat Jan 23 22:08:52 2016 daemon.info pppd[5358]: Exit.

guest · 2016-01-24T06:13:21.000Z

How does your /etc/config/network (WAN section) look like?

guest · 2016-01-25T22:54:51.000Z

Jan-Willem,

Are you having any luck with the MiFi?

alzhao · 2016-02-04T15:49:53.000Z

I tried UC20 with 3G network and it works. I will post the instructions shortly.

jw, pls give your /etc/config/network content.

If you are pretty sure your config is correct. The next two things are:

Make sure 3G antenna is connected, otherwise you cannot register the SIM card
If you used wrong settings (e.g. wrong data port) and you corrected it. If restart network, restart the device doesn't help. Try to unplug the power then plug it again. By unplug the power, the 3G module may reset and works. I met such problem many timess.

alzhao · 2016-02-04T17:27:07.000Z

The instructions are here:

http://www.gl-inet.com/download/mifi/